﻿<!DOCTYPE html>
<html>
<head>
    <script src="jquery.min.js">
    </script>
    <script>

        $(document).ready(function () {
            $("button").click(function () {
                var div = $("div");
                div.animate({ height: '300px', opacity: '0.4' }, "slow");
                div.animate({ width: '300px', opacity: '0.8' }, "slow");
                div.animate({ height: '100px', opacity: '0.4' }, "slow");
                div.animate({ width: '100px', opacity: '0.8' }, "slow");
            });
        });
    </script>
</head>
<body>
    <button>开始动画</button>
    <div style="background:#98bf21;height:100px;width:100px;position:absolute;">
    </div>
</body>
</html>
